CN1931693B

CN1931693B - Delivery device in sheet-fed offset rotary printing press

Info

Publication number: CN1931693B
Application number: CN2006101518329A
Authority: CN
Inventors: 青木孝畅
Original assignee: Komori Corp
Current assignee: Komori Corp
Priority date: 2005-09-14
Filing date: 2006-09-13
Publication date: 2010-05-19
Anticipated expiration: 2026-09-13
Also published as: EP1764328B1; US20070052158A1; JP2007076811A; EP1764328A2; US7588247B2; CN1931693A; EP1764328A3

Abstract

A delivery device in a sheet-fed offset rotary printing press includes a plurality of suction units and at least one guide unit. The plurality of suction units are arranged above a pile board on an upstream sheet convey direction side below a sheet under conveyance in a widthwise direction of the sheet, and draw by suction the sheet under conveyance in slidable contact with it. The guide unit is arranged between suction units among the plurality of suction units which are located at two ends, and moves the sheet at substantially the same speed as a convey speed of the sheet under conveyance.

Description

Conveyer in the sheet-fed offset rotary press

Technical field

The present invention relates to the conveyer in a kind of sheet-fed offset rotary press (sheet-fed offset rotary printing), described conveyer is set at the upstream sheet transport direction side of pile board, and comprises the attraction unit (suction unit) that is used to reduce paper sheet delivery speed.

Background technology

In such sheet-fed offset rotary press, clamp from the grippers that is stamped cylinder at it by the paper of printing element printing and to become the grippers (gripper) that is transmitted chain and be transferred when clamping.Thereafter, paper is discharged from grippers at the feeding terminal place and is dropped on and will be stacked on the piling up on the platform of there.Because the paper that transmission chain is carried is only clamped by grippers at its leading edge place, so the trailing edge of paper may tremble.In addition, when paper is released and when falling, inertia occurs along with paper moves, and the edge of paper may be unjustified when piling up.

For anti-phenomenon here, a plurality of attraction wheels (suction wheel) are in line in the paper sheet underneath of the upstream of the heap cardboard on paper width direction sheet transport direction side under carrying.Attract wheel to have to draw the suction surface of paper when being adsorbed on and to be lower than the circumferential velocity rotation of paper sheet delivery speed with the paper moving contact.Therefore, reduce the moving velocity of the paper of being clamped by grippers that has discharged.In printed on both sides, if above-mentioned attraction wheel is positioned at the pattern that is printed on the reverse side of paper, then attract the suction surface of wheel can damage the image section that is printed on the paper, thereby reduce printing quality.Therefore, attract wheel must be positioned at the non-image part of not carrying out printing.

If except that paper does not exist the quantity of non-image part or non-image part very little two ends on the Width, then attract the quantity of wheel to be restricted, and paper central authorities are attracting to become lax between the wheel, that is, it is lax usually said centre to occur.When this centre of appearance was lax, two ends of paper may break away from the attraction wheel and can't draw by adsorbing, and made and can't reduce paper sheet delivery speed fully.As a result, paper trembles.When paper was stacked, the edge of paper did not align well and contacts with the carriage that attracts wheel, thereby damaged print surface.

For head it off, a kind of device is proposed in Japanese Patent Laid-Open Publication 2000-95409 number, described device comprises a plurality of attraction wheels and at least one pair of nozzle, wherein said attraction wheel is set on the Width of the paper that will carry, and described nozzle is set at paper sheet underneath on Width paper central authorities are clipped in the middle in the paper both sides.Described a pair of nozzle in conveying air-out upwards to blow paper.In this device, by formed air layer is by outwards guiding is with lax in the middle of proofreading and correct on the Width at paper from the air of nozzle, wherein paper becomes lax downwards from the discharge directions of nozzle.Therefore, the two ends of paper can not break away from the attraction wheel.

In the suction device of traditional sheet-fed offset rotary press, air is blown into paper being pulled outwardly the two ends of paper on Width, thereby paper is broadened slightly.Promote paper equably for integral body but not partly promote paper, must adjust the amount of blowing of air.Yet, be difficult to adjust the amount of blowing of air, and this adjustment can expend time in.Lax for the centre that prevents paper, except attracting wheel, also nozzle must be set.Therefore, except aspirated air being fed to the flexible pipe that attracts wheel, also the flexible pipe that air-out is fed to nozzle must be arranged.This can cause complicated structure and increase manufacturing cost.

Summary of the invention

An object of the present invention is to provide the conveyer in a kind of sheet-fed offset rotary press, do not need to adjust the amount of blowing of air when wherein relaxing in the centre of the paper that prevents to transmit.

Another object of the present invention provides the conveyer in a kind of sheet-fed offset rotary press, and wherein structure is simplified to reduce manufacturing cost.

In order to obtain above-mentioned purpose, according to the present invention, conveyer in a kind of sheet-fed offset rotary press is provided, described conveyer comprises a plurality of attractions unit, above described attraction unit is set at pile board along the upstream sheet transport direction side of the paper sheet underneath of paper width direction under carrying, and draw paper under carrying when being adsorbed on the paper moving contact; And at least one pilot unit, described pilot unit be set in described a plurality of attractions unit two ends and with carry under the identical speed of the delivery speed essence of paper move between the attraction unit of paper.

Description of drawings

Fig. 1 is for schematically showing the lateral plan according to the conveyer in the sheet-fed offset rotary press of the first embodiment of the present invention;

Fig. 2 is the planar view of the main portion of the conveyer shown in Fig. 1;

Fig. 3 is the front elevation of the main portion of the conveyer shown in Fig. 1;

The section drawing that Fig. 4 is intercepted for the line IV-IV along Fig. 2;

The view that Fig. 5 is seen for the arrow V from Fig. 2;

The section drawing that Fig. 6 is intercepted for the line VI-VI along Fig. 5;

Fig. 7 is the view of the annularity of the belt that adopted in the conveyer shown in the instruction diagram 1;

Fig. 8 is installed in the section drawing of the state on the load-carrying element for the pilot unit that is adopted in the conveyer shown in the displayed map 1;

The section drawing that Fig. 9 is intercepted for the line IX-IX along Fig. 8;

Figure 10 is installed in the lateral plan of the state on the load-carrying element for the pilot unit that is adopted in the conveyer shown in the displayed map 1;

Figure 11 is the view that is used for the air inlet source/exhaust source of the conveyer shown in the instruction diagram 1 and attracts the conversion between unit/pilot unit;

Figure 12 is the lateral plan of the main portion of demonstration conveyer according to a second embodiment of the present invention; With

The section drawing that Figure 13 is intercepted for the line XIII-XIII along Figure 12.

The specific embodiment

Will be referring to the conveyer that be used for sheet-fed offset rotary press of Fig. 1 to Figure 11 explanation according to the first embodiment of the present invention.

Referring to Fig. 1, the conveyer 1 that is used for sheet-fed offset rotary press comprises with predetermined gap a pair of transmission framework 2 respect to one another.Transmit framework 2 and axially support pair of sprocket (sprocket) 3.A pair of transmission chain 4 forms ring-type between the sprocket wheel (not shown) of described pair of sprocket 3 that transmits framework 2 and a pair of printing element side.Many group grippers unit 5 (schematically illustrated in Fig. 1) are included in grippers and the grippers pad that is in line on each grippers bar (gripper bar), and wherein said grippers bar is supported on predetermined space between the described a pair of transmission chain 4.The paper 6 of clamping and being transferred by grippers unit 5 along with advancing of transmission chain 4 after printing by 5 releases of grippers unit and drop on the upstream sheet transport direction side of sprocket wheel 3.

Pile board 7 with four corners (corner) of being sling by four elevating chains (elevating chain) 8 is in electrical motor (not shown) cw/vertical shifting when rotating in the counterclockwise.Smooth cuboid supporting plate 9 is placed on the pile board 7, and wherein said supporting plate has the hole of the crotch (fork) that can insert fork truck (fork lift) or allied equipment.In the upstream of pile board 7 sheet transport direction side (direction of arrow B), comprise that the belt that is arranged on paper 6 belows under carrying attracts five of wheel to attract the Width (direction of arrow C and D) of the paper 6 of unit 10A to 10E under carrying to go up (promptly, on direction perpendicular to throughput direction (direction of arrow A and arrow B)) be in line, as shown in Figure 3.The leading edge of the paper 6 that splicing part (sheet lay) 11 adjacency fall is to align with it.

As shown in Figure 2, a pair of

subframe

13A and 13B are provided on the direction of arrow C and D with predetermined gap toward each other, and two

poles

14 and 15 horizontal-extending between subframe 13A and 13B.Axle drive shaft 16 is supported between subframe 13A and the 13B and by electrical motor 16a (first drive source) rotation in rotatable mode and drives.Be connected subframe 13B between

pole

14 and 15 and strut bar 18 with rotatable mode studdle axle 17A and

17B.Screw shaft

17A and 17B are towards another subframe 13A extension and their axial motion is controlled.The salient that passes subframe 13B as

screw shaft

17A and 17B attracts

unit

10A, 10B, 10D and 10E and pilot unit 80A and 80C (will illustrate after a while) mobile on the direction of arrow C and D with the manual mode cw with when rotating in the counterclockwise.

Supported member 25A, 25B, 25D and 25E be so that the reversible type screw rod (inverse helical screw) that its screw shaft 17A that moves on paper width direction and 17B are length travel, and each screw shaft have on the lateral surface greater than the pitch on medial surface.The load-carrying element 25C that is positioned at central authorities does not have the threaded portion, and therefore can't move.Therefore, the gap on the Width of the paper 6 under carrying is adjusted according to the size of paper 6 between pilot unit 80 and the attraction unit 10.

S. A. 19 is supported between described a pair of subframe 13A and the 13B in rotatable mode.When the electrical motor (not shown) on cw/anticlockwise direction rotatably during driven in rotation axle 19,

subframe

13A and 13B move with respect to described a pair of transmission framework 2 on the direction of arrow A and B by miniature gears 20 and the tooth bar (not shown) that axially is installed on S. A. 19 two ends.Have a large amount of air extractor vent 21a in abutting connection with the trailing edge of falling the paper 6 on the pile board 7 with the splicing part 21 that aligns with it, and described splicing part is connected to pole 14 and extends on the direction of arrow C and D.

As shown in Figure 3, each all have around as block (block) 22a of the end of supporting by pole 14 of the cooresponding little axle 23 of center of oscillation can the swing mode to support the cooresponding detection lug 22 of the upward movement limit that detects pile board 7.When the supporting plate 9 of the pile board 7 that has moved up during in abutting connection with detection lug 22, detection lug 22 detects supporting plate 9 and makes pile board 7 stop upward movement.This can prevent that supporting plate 9 from upwards promoting to attract unit 10 or allied equipment.

To the load-carrying element 25A to 25E that attract unit 10A to 10E and support described attraction unit be described referring to Fig. 4 to Fig. 6.Attract unit 10A to 10E to have identical basic structure with load-carrying element 25A to 25E.Therefore, will only illustrate hereinafter to attract unit 10E and load-carrying element 25E, and will illustrate that in case of necessity remaining attracts unit 10A to 10D and load-carrying element 25A to 25D.

As shown in Figure 4,

pole

14 and 15 is supported smooth block load-carrying element 25E so that the Width (direction of arrow C and D) of its paper 6 under carrying is gone up mobile.Tapped bore 28 is formed in the bevelled top installation surface 27 of load-carrying element 25E with being threaded.Constitute and attract the smooth bulk support target member 26E of unit 10E to be installed on the bevelled top installation surface 27 of load-carrying element 25E.Support target member 26E and have vertically extending jack 29.The lower surface 30 that supports target member 26E contacts with the installation surface 27 of load-carrying element 25E.Subsequently, the bolt 31 (transom) that inserts in the jack 29 is threaded in the tapped bore 28 (linking objective part), is installed on the load-carrying element 25E will support target member 26E.

As shown in Figure 6, load-carrying element 25E has a diameter through hole 32 and two minor diameter through holes 33 (through hole 33 is not shown).The diameter of through hole 32 is greater than the diameter of axle drive shaft 16 and comprise bearing 34.Sleeve 35 is assembled on the axle drive shaft 16.Sleeve 35 is supported in the through hole 32 of load-carrying element 25E in rotatable mode by bearing 34.Fastening fixing screw 36 makes sleeve 35 with axle drive shaft 16 rotations.Be assemblied between the end face of ring-type sliding component 38A on the axle drive shaft 16 and sleeve 35 and accompany driven wheel 37.Driven wheel 37 is installed on the end face of sleeve 35 by bolt.

Preventing member (coming-out preventive member) 40 is installed on the other end of sleeve 35 by fixing screw.Prevent member 40 and be formed between the end difference 35a on the sleeve 35 accompanying load-carrying element 25E.Therefore, when load-carrying element 25E was mobile on the direction of arrow C and D, sleeve 35 moved with load-carrying element 25E.The sliding component 38B that is assemblied on the axle drive shaft 16 is installed on the outside face of preventing member 40.

Be roughly columniform moving meter 42 and be assembled in the through hole 33 of load-carrying element 35E, wherein said moving meter has the threaded portion 42a that is used for screw shaft 17B threads engage.Axially be installed between the end difference 42b of annular component 43 on the end of moving meter 42 and moving meter 42 and accompany load-carrying element 25E.When moving meter 42 was mobile on the direction of arrow C and D, load-carrying element 25E also can move on the direction of arrow C and D together with moving meter 42.As shown in Figure 5, be threaded with another screw shaft 17A with the moving meter 44 that moving meter 42 has an identical function.When

screw shaft

17A and 17B rotation, load-carrying element 25E moves on the direction of arrow C and D with

screw shaft

17A and 17B by moving meter 42 and 44.As shown in Figure 4, load-carrying element 25E has thereon the air by-pass passage 45 that extends between upper end open 45a in the surface and the lower ending opening 45b in its side.Hose coupling (hose joint) 46 is connected to lower ending opening 45b.

As shown in Figure 6, major diameter pulley 52 is supported by the axle 50 that vertically extends on support target member 26 in rotatable mode by bearing 51.Gear 54 is supported on the end of axle 50 in rotatable mode by bearing 53.Gear 54 is installed on the upper surface of major diameter pulley 52 by bolt.Come out from major diameter pulley 52 and axle 50 with axle 50 bolts that are threaded 56 pinions 54 by packing ring 55.

As shown in Figure 5, minor diameter pulley 62 and 63 is supported by the axle 60 and 61 that vertically extends in the top of supporting target member 26 in rotatable mode by bearing.

Prevent member

64 and 65 control minor diameter pulleys 62 and 63 come out from axle 60 and 61.Attraction band (the suction belt) 66 that in its outside face, has a large amount of sucking hole 66a minor diameter pulley 62 and 63 and major diameter pulley 52 between form ring-type and form a triangle.

As shown in Figure 5, breather pipe 67 is configured between minor diameter pulley 62 and 63 and attracts the medial surface with 66 relative.Breather pipe 67 has makes itself and the U-shaped cross section that attracts to open with 66 relative tops.When the aspirated air from air inlet source 101 (will state after a while) is supplied to breather pipe 67, attract to form suction surface with the 66 part 66b relative with breather pipe 67, described suction surface is drawn paper 6 under the conveying by absorption with paper 6 moving contacts the time.Air by-pass passage 68 is formed at breather pipe 67 belows.Air by-pass passage 68 vertical extent are crossed support target member 26, make upper end open 68a and lower ending opening 68b interconnect.The upper end open 68a of air by-pass passage 68 is connected to the intercommunicating pore 67a that is formed in breather pipe 67 bottoms.

As mentioned above, when support target member 26E is installed on the load-carrying element 25E, the upper end open 45a of air by-pass passage 45 contacts with the lower ending opening 68b of air by-pass passage 68, make the air by-pass passage 45 of load-carrying element 25E be connected, as shown in Figure 4 with the air by-pass passage 68 that supports target member 26E.Simultaneously, the driven wheel 37 of load-carrying element 25E is meshed with the gear 54 that supports target member 26E.

Guiding is clamped by grippers 5 and the belt 70 of the paper 6 carried is set at transmission chain 4 belows.As shown in Figure 7, belt 70 forms ring-type between driven roller 72, jockey pulley 73 and driven voller 71,74,75 and 76.In the paper guiding area between driven voller 71 and 76, belt 70 is parallel to that transmission chain 4 is supported and is driven by electrical motor 77 (second drive source), thereby moves with the moving velocity guiding driven roller 72 identical with the speed of transmission chain 4 by the reducing gear (not shown).

To pilot unit be described referring to Fig. 8 to Fig. 9.As shown in Figure 9, the pilot unit 80 ways 83A that comprises the block base 81 that will be installed on the load-carrying element 25, will be installed in a pair of air blast ducted body 82A on the base 81 and 82B, rotatably guide by air blast ducted body 82A and 82B respectively and 83B and a pair of rotation transfer body 84 that respectively rotation is sent to ways 83A and 83B.

As shown in Figure 8, base 81 comprise will be by its inserting bolt 31 jack 86, have the air by-pass passage 87 of lower ending opening 87a and be connected with air by-pass passage 87 and the through hole 88 of extend through base 81 on paper width direction.When the lower surface of base 81 and the installation surface 27 of load-carrying element 25 form contact after, inserting bolts 31 in the jack 86, to be threadedly connected to the tapped bore 28 of load-carrying element 25 interior so that base 81 is installed on the load-carrying element 25.When base 81 was installed on the load-carrying element 25, the lower ending opening 87a of air by-pass passage 87 contacted with the upper end open 45a of air by-pass passage 45, made air by-pass passage 87 be connected with air by-pass passage 45.

As shown in Figure 9, each among air blast ducted body 82A and the 82B constitutes the cylinder that the end is arranged with the hollow bulb 82a that has an open end substantially, and the other end of described each air blast ducted body has heavy wall salient 82b.Hollow bulb 82a is connected to exterior two intercommunicating pore 82c to be formed in the top of salient 82b.Has connection fenestra (communicationwindow) 82d that hollow bulb 82a is connected by it with the air by-pass passage 87 of base 81 in the part of the outside face of air blast ducted body 82B.Air blast ducted body 82A and 82B are installed in the through hole 88 that is assemblied in base 81.At this moment, air blast ducted body 82B is installed into to make and is communicated with fenestra 82d and is connected with the air by-pass passage 87 of base 81.Air blast ducted body 82A is installed into makes its open end contact with the open end of air blast ducted body 82B.The hollow bulb 82a of air blast ducted body 82A that interconnects at this moment, and each among the 82B is connected to the air by-pass passage 87 of base 81 and the air by-pass passage 45 of load-carrying element 25 by being communicated with fenestra 82d.

Among cylindrical ways 83A and the 83B each is supported on other end place cooresponding among air blast ducted body 82A and the 82B, to rotate around cooresponding salient 82b by bearing 90.Ways 83A and 83B have and extend to exterior a large amount of minor diameter discharge orifice 83a internally.Air (air that will illustrate) from air supply source 102 is discharged via discharge orifice relative with the intercommunicating pore 82c of air blast ducted body 82A and 82B among a large amount of discharge orifice 83a.

A terminal shaft of each in a pair of control lever 92 to be installed on this to air blast ducted body 82A and 82B on cooresponding one, and in a pair of axle 93 each axially is installed on another end of cooresponding control lever 92.Rotation transfer body 84 is supported in rotatable mode on the axle 93 by bearing 94.The contact part 84a that makes with ways 83A and the contacted rubber of 83B is installed on the outside face of rotation transfer body 84 separately.As shown in Figure 10, contact part 84a also contacts with belt 70.Ways 83A rotates by going up in the direction identical with sheet transport direction (anticlockwise direction among Figure 10) with the circumferential velocity identical with the moving velocity of belt 70 with the wipe contact of rotation transfer body 84 with 83B.Ways 83A and 83B are set at a little less than the attraction that attracts unit 10 with 66 position.

Five gas feeder 100A to 100E shown in Figure 11 are fed to each load-carrying element 25A to 25E with air-out or aspirated air.Gas feeder 100A to 100E shares an air inlet source 101, and described air inlet source is fed to aspirated air by each load-carrying element 25A to 25E and attracts unit 10A to 10E.Gas feeder 100A to 100E also shares an exhaust source 102, and described exhaust source is fed to air blast box 80A to 80C by load-carrying element 25A to 25E with air-out.Air inlet source 101 and exhaust source 102 are shared by gas feeder 100A to 100E.

Air inlet source 101 and exhaust source 102 are connected to gas feeder 100A to 100E by transfer device 103.Transfer device 103 comprise by flexible pipe 104 be connected to air inlet source 101 free air diffuser 105, by flexible pipe 106 be connected to exhaust source 102 blast channel 107, be connected to the air supply channel 109 of hose coupling 46 and the change-over valve 110 of the air by-pass passage 109 of between air by-pass passage 105 and 107, optionally transferring by shared flexible pipe 108.

Change-over valve 110 comprises the recess 110a with half moon cross section.When recess 110a was arranged in the represented position of two dash lines that the long distance of Figure 10 replaces, air by-pass passage 105 and air by-pass passage 109 interconnected by recess 110a.When recess 110a is positioned at when roughly pivoting 90 ° the position that solid line indicated from two positions that dash line indicated that long distance replaces, air by-pass passage 107 and air by-pass passage 109 interconnect by recess 110a.L shaped control lever 111 therein heart place around from the axle 112 that vertically extends as the device fixed part of center of oscillation can the swing mode being supported.Joystick 113 is connected to an end of control lever 111, and an end of pipe link 114 is can the pivot mode being installed on the other end of control lever 111.Selector bar 115 is set to change-over valve 110.The end of selector bar 115 is can the pivot mode being installed on the other end of pipe link 114.

Explanation had the transfer operation in the conveyer of above-mentioned configuration.At first, the situation in the time of explanation will being reduced the delivery speed that attracts the paper that unit 10A to 10E transmitted.In this case, as shown in Figure 4, support target member 26 and be installed on the installation surface 27 of all load-carrying element 25A to 25E that attract unit 10A to 10E by bolt 31.In this state, the joystick 113 of all gas feeder 100A to 100E pivots widdershins, and two dash lines that replace as the long distance among Figure 11 indicate, so that air by-pass passage 105 and air by-pass passage 109 interconnect.

Therefore, aspirated air is supplied to all air by-pass passages 45 that attract the load-carrying element 25A to 25E of unit 10A to 10E, and is supplied to support target member 26A to 26D that is connected with cooresponding air by-pass passage 45 and the air by-pass passage 68 that supports target member 26E.The aspirated air that is fed to air by-pass passage 68 then is supplied to breather pipe 67, make to carry paper 6 down be attracted with the 66 suction surface 66b absorptions relative with breather pipe 67 by absorption.

Referring to Fig. 6, when electrical motor 16a is driven and when making axle drive shaft 16 rotation, sleeve 35 rotations of load-carrying element 25A to 25E.Because sleeve 35 rotation, so driven wheel 37 rotates with described sleeve, so that gear 54 rotations of the support target member 26A to 26E that is meshed with driven wheel 37.So major diameter pulley 52 is with gear 54 rotation, makes and move with speed on 66 directions a little less than the delivery speed of paper 6 in arrow A in the attraction of formation ring-type between cooresponding major diameter pulley 52 and minor diameter pulley 62 and 63.At this moment, belt 70 (Fig. 5) is driven by the electrical motor (not shown) and moves with the speed identical substantially with the moving velocity of transmission chain 4 on the direction of arrow A.

5 discharged and the absorption of paper 6 by its trailing edge place that drops on the feeding terminal of conveyer 1 is drawn with 66 suction surface 66b with five attractions of their moving contacts from the grippers unit.Therefore, the moving velocity of paper 6 reduces, and makes paper 6 be stacked on the supporting plate 9 on the pile board 7.

Suppose that conveyer will transfer to printed on both sides from being printed on one side, and the quantity of not having an image section is restricted and the Width of paper 6 on the center be not provided with no image section.In this case, three attract the center on the Width that unit 10B, 10C and 10D can not be configured to be positioned at the paper 6 under carrying.In this case, three pilot units 80 are set and replace attracting unit 10B, 10C and 10D.

At first, unclamp the bolt 31 that supports target member 26B, 26C and 26D is installed, attract unit 10B, 10C and 10D to be removed from load-carrying element 25B, 25C and 25D with support target member 26B, 26C and 26D.Subsequently, pilot unit 80 is installed in respectively on load-carrying element 25B, 25C and the 25D by bolt 31.

In this state, two dash lines that replace as the long distance among Figure 11 indicate, and the joystick 113 of gas feeder 100A and 100E pivots widdershins, so that free air diffuser 105 and air supply channel 109 interconnect.Therefore, aspirated air is supplied to and attracts

unit

10A and 10E, attracts the attraction of

unit

10A and 10E to be with 66 so that aspirated air is fed to respectively.Simultaneously, the joystick 113 of gas feeder 100B, 100C and 100D indicates deasil as the solid line among Figure 11 and pivots, so that air by-pass passage 107 and air by-pass passage 109 interconnect.

So air-out is supplied to the air by-pass passage 45 of load-carrying element 25B, 25C and 25D and the air by-pass passage 87 of the pilot unit 80 that is connected with air by-pass passage 45.The air-out that is fed to each air by-pass passage 87 is discharged by the discharge orifice 83a of ways 83A from be included in pilot unit 80 and 83B.When electrical motor 16a is driven and when making axle drive shaft 16 rotation, the attraction that is installed in attraction unit 10A on load-carrying element 25A and the 25E and 10E is moved with the speed a little less than the delivery speed of paper 6 on the direction of arrow A with 66.

When carrying out transfer operation in this state, the ways 83A of each in three pilot units 80 and 83B support and the guiding paper along the Width of paper, and wherein said ways is set at and 5 is discharged and drop on the below of paper 6 of the feeding terminal of conveyer 1 from the grippers unit.This centre that can prevent paper 6 is lax, and the attraction that the two ends of paper 6 will break away from

attraction unit

10A and 10E is with 66, makes that the delivery speed of paper 6 can fully be reduced.As a result, prevent paper 6 vibration reliably, and deviation appears in the paper edge can prevent to pile up the time, and can prevent that paper from contacting with the carriage that attracts to take turns, thereby will can not damage its printing surface.Because the ways 83A of guiding paper 6 rotates along the direction identical with the throughput direction of paper 6 with the essence speed identical with the delivery speed of paper 6 with 83B, so ways 83A and 83B will can not damage printing surface.

Air via air by-pass passage 45 and 87 and air blast ducted body 82A and 82B discharge so that paper 6 is unsteady towards the lower surface of carrying paper 6 down from the discharge orifice 83a of ways 83A and 83B.Therefore, can prevent reliably that the centre of paper 6 is lax.5 discharged and the paper 6 of feeding terminal that drops on conveyer 1 is drawn by described suction surface during the suction surface 66b moving contact by being adsorbed on and attracting unit 10A to 10E at its trailing edge place from the grippers unit.Therefore, the moving velocity of paper 6 can reduce, and makes paper 6 be stacked on reliably on the supporting plate 9 on the pile board 7.

As mentioned above, attract unit 10B to 10D and pilot unit 80 optionally to be installed on the load-carrying element 25B to 25D.Do not need to be independent of in advance the attraction unit pilot unit 80 is set, thereby simplify the structure.Attract unit 10B to 10D all to adopt bolt 31 about the mounting structure of load-carrying element 25B to 25D about the mounting structure of load-carrying element 25B to 25D and pilot unit 80.Therefore, do not need two types mounting structure, thus can simplified structure and reduce the quantity of parts.Transfer device 103 is configured to the air supply from air inlet source 101/ exhaust source 102 is transformed into attraction unit 10/ pilot unit 80.Therefore, air can be supplied to attraction unit 10 and the pilot unit 80 with shared flexible pipe 108, thereby can simplified structure and reduce the quantity of parts.

To the second embodiment of the present invention be described referring to Figure 12 and Figure 13.As shown in Figure 13, axle 124 and 125 is vertically standing on the base plate 123 and horizontal-extending between pair of side plates respect to one another 121 and 122.Ways 127 is rotatably supported by axle 124 by bearing 126, and rotation transfer body 129 is rotatably supported by axle 125 by bearing 128.The contact part 129a that makes with ways 127 contacted rubber is installed on the outside face of rotation transfer body 129.

As shown in Figure 12, the maintenance block 130 with L shaped cross section is installed on the base plate 123 by bolt 131.Groove 130a is formed at base plate 123 and keeps between the block 130.The tapped bore 130b that is connected with the groove 130a that is connected with pole 14 is formed in the bottom of base plate 123.When groove 130a between load-carrying element 25A and the 25E with after pole 14 is matched, be threadedly connected to the terminal adjacent struts 14 of the bolt 132 in the tapped bore 130b, so that base plate 123 is installed on the pole 14.Therefore, one or more ways 127 is positioned in the two ends that are independent of load-carrying element 25B, 25C and 25D and attracts between unit 10A and the 10E, and is set at the below that attracts with 66, as shown in Figure 12.At this moment, the contact part 129a of rotation transfer body 129 contacts with belt 70.

In this configuration, be different from the attraction unit 10A that is positioned at two ends and attraction unit 10B, 10C and the 10D of 10E and removed from load-carrying element 25B, 25C and 25D respectively.Subsequently, aspirated air is supplied to by load-carrying element 25A and 25E respectively and attracts

unit

10A and 10E, and electrical motor 16a drives and attract the attraction of

unit

10A and 10E to be with 66, so that described attraction band moves with the speed a little less than the delivery speed of paper 6.Under this state, when paper 6 is fallen from grippers 5 releases at the feeding terminal place of conveyer 1, because the core of paper 6 is set at ways 127 supports of paper 6 belows, so paper 6 is directed along sheet transport direction.This centre that can prevent paper 6 is lax.

According to this embodiment, because the two ends of paper 6 will can not be with 66 to break away from from the attraction that attracts

unit

10A and 10E, so can reduce the delivery speed of paper 6 fully.Therefore, paper 6 will can not tremble, and make to prevent that the edge of paper is unjustified when piling up, and can prevent that paper from contacting with the carriage that attracts the unit, thereby will can not damage the printing surface of paper.Because the ways 127 of guiding paper 6 rotates on the direction identical with the throughput direction of paper 6 with the speed identical with the delivery speed essence of paper 6, so ways 127 will can not damage printing surface.Ways 127 by unclamp bolt 132 and pole 14 vertically on move and keep block 130 on the direction of arrow C and D, to move and to adjust.Two or more wayss 127 can be set in case of necessity.

In the first above-mentioned embodiment, air is discharged from ways 83A and 83B.If do not need paper 6 suspended from lead member 83A and 83B, then needn't air-out.As long as paper is that the sheet type object just can meet the demands.

As mentioned above, according to the present invention, owing to be provided with ways, relax and can not damage paper so can prevent the centre of paper with the speed channeling conduct identical with the delivery speed essence of carrying paper down.Owing to do not need air is blown into paper, so do not need to adjust the amount of blowing of air.

Attract unit and pilot unit optionally to be installed on the load-carrying element.Therefore, do not need to be independent of in advance the attraction unit pilot unit is set, thus can simplified structure.Because paper is suspended from the member that leads by the air of discharging from pilot unit, so can prevent reliably that the centre of paper is lax.

Because can being fed to via shared pipe, air attracts unit and pilot unit, so can simplified structure and can reduce manufacturing cost.

Claims

1. the conveyer in the sheet-fed offset rotary press is characterized in that comprising:

A plurality of attractions unit (10A-10E), described attraction unit is set at pile board (7) top along the upstream sheet transport direction side of the paper sheet underneath of paper width direction under carrying, and draws the paper under carrying when being adsorbed on the paper moving contact; With

At least one pilot unit (80A-80C), described pilot unit are set in described a plurality of attractions unit between the attraction unit at two ends, and move paper with the speed identical with the delivery speed cardinal principle of carrying paper down;

Wherein

Described attraction unit comprises the attraction wheel, and the circumferential velocity that described attraction is taken turns with the delivery speed that is lower than paper is rotatably driven and is decelerated by the paper under the absorption absorption conveying time, and

Described pilot unit comprises ways (83A, 83B, 127), and described ways is rotatably driven and supports paper under carrying with the circumferential velocity identical substantially with the delivery speed of paper;

Further comprise at least one load-carrying element (25A-25E), the attraction unit and the described pilot unit that are different from the described attraction unit that is positioned at two ends in described a plurality of attractions unit optionally are installed on described at least one load-carrying element.

2. device according to claim 1 further comprises:

First drive source (16a), when described attraction wheel was installed on the described load-carrying element, described first drive source drove described attraction wheel; With

Second drive source (77), when described pilot unit was installed on the described load-carrying element, described second drive source rotatably drove described ways.

3. device according to claim 1, wherein said ways (83A, 83B) comprise and being used for towards the lower surface air-out of the paper of the carrying air-blast device (83a) with the guiding paper.

4. device according to claim 3, further comprise air switching device (101-103), described air switching device is used for when described attraction wheel is installed on the described load-carrying element aspirated air being fed to described attraction takes turns, and when described pilot unit is installed on the described load-carrying element air-out is fed to described air-blast device.

5. device according to claim 4, wherein said air switching device are configured to the described attraction unit of the described attraction unit that is positioned on the two ends corresponding to being different from described a plurality of attractions unit.

6. device according to claim 5, further comprise actuating element (113), change described air switching device when the described attraction unit of the described attraction unit that described actuating element being different from described a plurality of attractions unit is positioned on the two ends is replaced by described pilot unit.

7. device according to claim 4, wherein said air switching device comprises:

Aspirated air is fed to the air inlet source (101) of described attraction unit;

Air-out is fed to the exhaust source (102) of described pilot unit; With

Change-over valve (110), described change-over valve make first air by-pass passage (108) that is connected to described attraction/pilot unit at second air by-pass passage (104) that is connected to described air inlet source and be connected between the 3rd air by-pass passage (106) of described exhaust source and change.

8. device according to claim 3, wherein said ways comprises:

Cylindrical hollow body (82a), described cylindrical hollow body comprise that air-out is supplied to its hollow bulb (82a, 83a); With

A large amount of discharge orifices (83a), described discharge orifice are formed in the outside face of described ducted body and with described ducted body and are connected.

9. device according to claim 8, wherein said ways further comprise at least one intercommunicating pore (83c) that upwards is communicated to described discharge orifice from the inside of described ducted body, and

Described hollow bulb is via described intercommunicating pore and the described discharge orifice paper blow air under carry.

10. device according to claim 1, further comprise mounting structure (28,31), the described attraction unit and the described pilot unit of the described attraction unit that being different from described a plurality of attractions unit is positioned on the two ends are installed on the described cooresponding load-carrying element jointly by described mounting structure.

11. device according to claim 10, wherein said mounting structure comprises:

Be set to the linking objective part (28) of described load-carrying element; With

The transom (31) that partly is connected with described linking objective,

Described transom is used for partly being connected with described linking objective, is fixed to described load-carrying element with the described attraction unit and the described pilot unit of the described attraction unit that optionally being different from described a plurality of attractions unit is positioned on the two ends.

12. device according to claim 11, wherein

Described linking objective partly comprises the tapped bore that is formed in the described load-carrying element, and

Described transom comprises bolt, and the described attraction unit that described bolt will be by being formed at the described attraction unit that being different from described a plurality of attractions unit be positioned on the two ends and the jack (29,85) of described pilot unit are threaded in described tapped bore.

13. device according to claim 1, wherein

Described load-carrying element comprises tapped bore (28) and first opening (45a) that is common between described attraction unit and the described pilot unit,

Described attraction unit comprises corresponding to first socket (29) of the described tapped bore of described load-carrying element and described first opening and second opening (68b), and

Described pilot unit comprises corresponding to second socket (85) of the described tapped bore of described load-carrying element and described first opening and the 3rd opening (84a).

14. device according to claim 1, wherein

Described load-carrying element comprises a plurality of load-carrying elements that are arranged on the paper width direction, and

Described a plurality of load-carrying element optionally supports described attraction/pilot unit.

15. device according to claim 1 further comprises screw shaft (17A, 17B), described screw shaft supports and supports described load-carrying element by framework (13B), with mobile on the Width of paper,

Wherein when described screw shaft turned round, described load-carrying element moved according to the size of paper.

16. device according to claim 1, wherein

Described load-carrying element is supported, is supported by being arranged to pair of frames respect to one another (13A, 13B) by pole (14,15), on perpendicular to the direction of sheet transport direction, moving,

Described attraction unit is detachably by described support member support, and

Described pilot unit is detachably supported by described pole.

17. device according to claim 16 further comprises:

First drive source (16a), when described attraction unit was installed on the described load-carrying element, described first drive source drove described attraction wheel; With

Second drive source (77), when described pilot unit was installed on the described pole, described second drive source rotatably drove described ways.

18. device according to claim 1 further comprises:

The feedway (70) that is used for conveyance of sheets;

Be used to drive the actuating device (77) of described feedway; With

The rotation transfer body (84,128) that rotatably drives by described actuating device,

Wherein said ways is rotatably driven by described rotation transfer body.

19. device according to claim 18, wherein

Described rotation transfer body is configured to contact with the outside face of described ways, and

Described ways is rotatably driven by the wipe contact with described rotation transfer body.

20. device according to claim 1 wherein guides the spigot surface of the described pilot unit of paper to be set at the height place that is lower than by the suction surface of adsorbing the described attraction unit of drawing paper.

21. device according to claim 1, wherein said attraction wheel comprises that belt attracts wheel.

22. device according to claim 1, wherein said attraction unit comprise the suction surface (66b) of drawing the paper under carrying when being adsorbed on the paper moving contact.